Blue Nile Glossary
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z Index
  This term refers to the color purity, or the degree to which the gem color is free from brown or gray hues. The most desirable gemstones, which show very little gray or brown, are often described as having vivid or strong color saturation.

See also: Hue, Gemstone Color.


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